Replaced special characters with ASCII

Ping_Monitor.ps1

@@ -337,8 +337,8 @@ try {
                 Write-PingDataLog -Address $addr -Status $status -ResponseTime $responseTime -SuccessRate $successRate
             }
             
-            # Calculate trend more efficiently
-            $trend = "━"  # Default to neutral
+            # Calculate trend more efficiently - FIXED: Using ASCII characters instead of Unicode
+            $trend = "-"  # Default to neutral (horizontal line)
             if ($stats[$addr].SampleCount -ge 5) {
                 $samples = $stats[$addr].SampleArray
                 $count = $stats[$addr].SampleCount
@@ -354,11 +354,11 @@ try {
                 
                 $slope = $last - $first
                 if ([Math]::Abs($slope) -lt 5) {
-                    $trend = "━"
+                    $trend = "-"  # Neutral
                 } elseif ($slope -lt 0) {
-                    $trend = "↓"
+                    $trend = "v"  # Down arrow
                 } else {
-                    $trend = "↑"
+                    $trend = "^"  # Up arrow
                 }
             }